APC theory question. Duty cycle and pressure (+) - Saab 900 Bulletin Board - Saabnet.com
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APC theory question. Duty cycle and pressure (+)
Posted by Siegfried (more from Siegfried) on Mon, 24 Sep 2007 07:09:57
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Morning, guys. Does anyone here still remember basic math and physics? :)
Please disproof (it's easier; although if you can proof it'll be great) the following equation. On the full throttle APC-equipped car has the following intake pressure:
P=Pbase/(1-D), where
P - turbo unit's output pressure (= intake pressure cause of full throttle)
Pbase - basic pressue set up via westgate's rod
D - current duty in fraction of one (i.e. 0 equals to 0% duty cycle and 1 is 100% duty cycle)
Obviously this is true when we've got either 0(=0%, fully closed APC valve, westgate's connected to intake operating at basic pressure) or 1(=100%, fully open, westgate's connected to atmosphere) duty cycle. But what about intermediate values, e.g. 0.1...0.5...0.9?
Any thoughts?
Zig
posted by 195.146.67...
Posts in this Thread:
- APC theory question. Duty cycle and pressure (+), Siegfried, Mon, 24 Sep 2007 07:09:57 <-- Viewing This Message
- Re: APC theory question. Duty cycle and pressure (+), Saab Junkie, Mon, 24 Sep 2007 11:26:00
- yeah i got a thought, vvack0matic , Mon, 24 Sep 2007 09:23:03
- Re: yeah i got a thought, Vern, Mon, 24 Sep 2007 11:11:24
- Geez, Zig, England produced Isaac Newton., RayF, Mon, 24 Sep 2007 10:48:22
- Too cool for Mon? :) (-), Siegfried, Mon, 24 Sep 2007 09:47:51
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